Kit
Operation
CY4531 EZ-
PD™ CCG3 Evaluation Kit Guide, Doc. No. 002-10218 Rev. *C
32
the consumer power consumer header (J7) is based on the power negotiation between the CCG3 device and the Type-
C power adapter. Thus, it will vary with respect to the attached Type-C power adapter. This demonstrates that a CCG3
enabled notebook with a Type-C port can be charged from the dead battery condition.
5.3.3 Power Supply Connections
A PC with a USB 3.0 port and a DisplayPort, along with the CY4531 EZ-PD CCG3 EVK, is equivalent to a PD-enabled
Type-C port Notebook as shown in
. In a real Type-C Notebook design, power from the power output header (J7)
of the CCG base board acting as the power adapter is connected to a Battery Charger Circuit (BCC) of a USB 3.0
Notebook/PC. On the CCG3 EVK, the DC power jack J1 on the CCG base board is provided for demonstration purposes
only because the internal supply from the notebook is not available. In a real system, the DC power input header J12 of the
CCG base board would be connected to the PMIC. A DC power adapter (if req
uired, shown as “Notebook Power Adapter”
) would be connected to the “ORing Controller” block which supplies power to the Battery Charger
Circuit.
Power being provided to the CCG3 kit would come from a PMIC in the Notebook, and the input source to that PMIC could
be either the notebook battery, a DC power adapter or, a Type-C power adapter. Hence, in a Notebook, it is possible to
connect both the DC power adapter and the Type-C power adapter without destroying the PC. However, in the case of the
CY4531 EZ-PD CCG3 EVK, because the internal power points to the Notebook are inaccessible, it is mandatory that when
the CY4531 EZ-PD CCG3 EVK is powered by a Type-C power adapter, power should not be provided via the power jack J1
of the CCG base board or else it may damage the EVK boards. This restriction is not due to a limitation on the CCG3
device, but only because of the inaccessibility of the internal power points inside a Notebook/PC.
Содержание CY4531 EZ-PD CCG3 EVK
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